SYSTEM AND METHOD FOR DENOISING MEDICAL IMAGES BY ENFORCING LOW RANK SPATIAL-TEMPORAL OR SPATIAL-SPECTRAL IMAGE MATRICES

摘要

Systems and methods for generating one or more denoised images from a series of noisy images acquired with a medical imaging system are described. In general, the systems and methods described here implement techniques whereby the series of noisy images are formed into a spatial-temporal or spatial-spectral image matrix in which each column represents a different noisy image. The image matrix is then processed to decompose the image matrix into basis images defined by a spatial and a temporal or spectral basis. Low rank solutions are enforced and extracted from the resulting decomposed image matrix as denoised images.